Aubree has learned how to fake cry. It's actually pretty funny to watch. She'll be sitting there happy as can be minding her business, and then she'll notice you looking at her so she'll start fake crying. It's not as high piches as her normal cry... and she'll stop for a minute to see if you're still looking at her. If you are, she's do it again. Kira taught her to fake cough a little while ago. Maybe this was another Kira doing.
